Which of the following has the highest specific heat?

Options

A. Water
B. Mercury
C. Kerosene
D. Copper

Explanation

To determine which of the given substances has the highest specific heat, we can follow these steps:

### Step 1: Understand Specific Heat
Specific heat is defined as the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius. It is represented by the formula:

\[ c = \frac{dQ}{m \cdot dT} \]

where:
- \( c \) = specific heat
- \( dQ \) = heat added
- \( m \) = mass of the substance
- \( dT \) = change in temperature

### Step 2: List the Specific Heats of the Given Substances
We are given four substances with their specific heats:
- Water: \( 4.18 \, \text{J/g°C} \)
- Mercury: \( 0.14 \, \text{J/g°C} \)
- Kerosene: \( 2.01 \, \text{J/g°C} \)
- Copper: \( 0.385 \, \text{J/g°C} \)

### Step 3: Compare the Specific Heats
Now, we will compare the specific heats of the four substances listed:
- Water: \( 4.18 \, \text{J/g°C} \)
- Mercury: \( 0.14 \, \text{J/g°C} \)
- Kerosene: \( 2.01 \, \text{J/g°C} \)
- Copper: \( 0.385 \, \text{J/g°C} \)

### Step 4: Identify the Highest Specific Heat
From the comparison, we can see that:
- Water has the highest specific heat value at \( 4.18 \, \text{J/g°C} \).

### Conclusion
Thus, the substance with the highest specific heat among the options provided is **Water**.

### Final Answer
The answer is **Water (Option 1)**.

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