Added Charles Law Calculator (#1961)

Rakesh9100 · Jan 3, 2025 · 90a9812 · 90a9812
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diff --git a/Calculators/Charles-Law-Calculator/README.md b/Calculators/Charles-Law-Calculator/README.md
@@ -0,0 +1,57 @@
+# <p align="center">Charles Law Calculator</p>
+
+## Description :-
+
+This is a web-based calculator that implements **Charles' Law**:
+
+\[(V_1 / T_1) = (V_2 / T_2)\]
+
+It allows users to calculate:
+
+- Final Volume \( V_2 \)
+- Final Temperature \( T_2 \)
+
+The calculator dynamically updates based on user inputs and provides instant results.
+
+## Tech Stacks :-
+
+- HTML
+- CSS
+- JavaScript
+
+## Features :-
+
+- **Dynamic Formula Display**: The formula for Charles' Law is displayed on the website for reference.
+- **Real-Time Results**: Automatically calculates the missing value when valid inputs are provided.
+- **Responsive Design**: The calculator works seamlessly across devices.
+- **Error Handling**: Guides the user with error messages for invalid or incomplete inputs.
+
+## How to Use :-
+
+1. Enter known values for \( V_1 \), \( T_1 \), and one of \( V_2 \) or \( T_2 \).
+2. Click the "Calculate" button to get the result.
+3. The missing value will be calculated using the formula:
+   \[(V_1 / T_1) = (V_2 / T_2)\]
+4. Clear inputs or refresh the page to reset the calculator.
+
+## Example Calculations :-
+
+#### Case 1: Calculate Final Volume (\( V_2 \))
+- **Input**:
+  - Initial Volume (\( V_1 \)): `2 L`
+  - Initial Temperature (\( T_1 \)): `300 K`
+  - Final Temperature (\( T_2 \)): `450 K`
+- **Output**:
+  - \( V_2 = (2 × 450) / 300 = 3 L\)
+
+#### Case 2: Calculate Final Temperature (\( T_2 \))
+- **Input**:
+  - Initial Volume (\( V_1 \)): `2 L`
+  - Initial Temperature (\( T_1 \)): `300 K`
+  - Final Volume (\( V_2 \)): `4 L`
+- **Output**:
+  - \( T_2 = (4 × 300) / 2 = 600 K\)
+
+## Screenshots :-
+
+![image](https://github.com/user-attachments/assets/8ab75b48-15cf-4558-b7ab-be2a3d0d04d8)
diff --git a/Calculators/Charles-Law-Calculator/assets/background.webp b/Calculators/Charles-Law-Calculator/assets/background.webp
diff --git a/Calculators/Charles-Law-Calculator/index.html b/Calculators/Charles-Law-Calculator/index.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="style.css">
+    <title>Charles Law Calculator</title>
+</head>
+
+<body>
+    <div class="calculator">
+        <h1>Charles' Law Calculator</h1>
+        <p class="formula">Formula: <strong>(V₁ / T₁) = (V₂ / T₂)</strong></p>
+
+        <label for="v1">Initial Volume (V₁):</label>
+        <input type="number" id="v1" placeholder="Enter V₁ (in liters)">
+
+        <label for="t1">Initial Temperature (T₁):</label>
+        <input type="number" id="t1" placeholder="Enter T₁ (in Kelvin)">
+
+        <label for="v2">Final Volume (V₂):</label>
+        <input type="number" id="v2" placeholder="Enter V₂ (in liters)">
+
+        <label for="t2">Final Temperature (T₂):</label>
+        <input type="number" id="t2" placeholder="Enter T₂ (in Kelvin)">
+
+        <button onclick="calculateCharlesLaw()">Calculate</button>
+        <div class="result" id="result"></div>
+    </div>
+
+    <script src="script.js"></script>
+</body>
+
+</html>
diff --git a/Calculators/Charles-Law-Calculator/script.js b/Calculators/Charles-Law-Calculator/script.js
@@ -0,0 +1,26 @@
+function calculateCharlesLaw() {
+    const v1 = parseFloat(document.getElementById('v1').value);
+    const t1 = parseFloat(document.getElementById('t1').value);
+    const v2 = parseFloat(document.getElementById('v2').value);
+    const t2 = parseFloat(document.getElementById('t2').value);
+
+    let resultText = "";
+
+    if (!isNaN(v1) && !isNaN(t1) && isNaN(v2) && !isNaN(t2)) {
+        // Calculate Final Volume (V2)
+        const v2Calculated = (v1 * t2) / t1;
+        resultText = `V₂ = (${v1} x ${t2}) / ${t1} = ${v2Calculated.toFixed(2)} liters`;
+    } else if (!isNaN(v1) && !isNaN(t1) && !isNaN(v2) && isNaN(t2)) {
+        // Calculate Final Temperature (T2)
+        const t2Calculated = (v2 * t1) / v1;
+        resultText = `T₂ = (${v2} x ${t1}) / ${v1} = ${t2Calculated.toFixed(2)} K`;
+    } else if (isNaN(v1) || isNaN(t1)) {
+        resultText = "Please enter valid values for initial volume (V₁) and initial temperature (T₁).";
+    } else if (isNaN(v2) && isNaN(t2)) {
+        resultText = "Please provide either final volume (V₂) or final temperature (T₂) to calculate.";
+    } else {
+        resultText = "Invalid input combination. Please ensure only one value is missing for calculation.";
+    }
+
+    document.getElementById('result').innerText = resultText;
+}
diff --git a/Calculators/Charles-Law-Calculator/style.css b/Calculators/Charles-Law-Calculator/style.css
@@ -0,0 +1,69 @@
+body {
+    font-family: Arial, sans-serif;
+    background-image: url('assets/background.webp');
+    background-size: cover;
+    margin: 0;
+    padding: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100%;
+    min-height: 100vh;
+}
+
+.calculator {
+    background: rgba(255, 255, 255, 0.9);
+    padding: 20px;
+    border-radius: 8px;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    width: 350px;
+    text-align: center;
+}
+
+h1 {
+    font-size: 24px;
+    margin-bottom: 10px;
+}
+
+.formula {
+    font-size: 16px;
+    margin-bottom: 20px;
+    color: #555;
+}
+
+label {
+    font-size: 16px;
+    margin: 10px 0;
+    display: block;
+}
+
+input {
+    width: calc(100% - 20px);
+    padding: 10px;
+    margin-bottom: 20px;
+    font-size: 16px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+}
+
+button {
+    background-color: #007bff;
+    color: white;
+    padding: 10px 20px;
+    border: none;
+    border-radius: 4px;
+    font-size: 16px;
+    cursor: pointer;
+    margin-top: 10px;
+}
+
+button:hover {
+    background-color: #0056b3;
+}
+
+.result {
+    margin-top: 20px;
+    font-size: 18px;
+    font-weight: bold;
+    color: #333;
+}
diff --git a/calculators.json b/calculators.json
@@ -455,6 +455,12 @@
         "link": "./Calculators/Centroid-Of-A-Triangle-Calculator/index.html",
         "source": "https://github.com/Rakesh9100/CalcDiverse/tree/main/Calculators/Centroid-Of-A-Triangle-Calculator"
     },
+    {
+        "title": "Charles Law Calculator",
+        "description": "Calculates the gas volume or temperature using Charles' Law.",
+        "link": "./Calculators/Charles-Law-Calculator/index.html",
+        "source": "https://github.com/Rakesh9100/CalcDiverse/tree/main/Calculators/Charles-Law-Calculator"
+    }, 
     {
         "title": "Chi-Square Calculator",
         "description": "Calculates the Chi-Square value of the data.",