Question

The water equivalent of $150\text{g}$ copper calorimeter is $15\text{g}$. What is the specific heat of the calorimeter?

• A. $0.2\text{cal/gC}$
• B. $0.1\text{cal/gC}$
• C. $0.4\text{cal/gC}$
• D. $10\text{cal/gC}$

Answer 1

The correct option is B $0.1\text{cal/gC}$

Given:
Water equivalent of calorimeter $=15\text{g}$
Mass of calorimeter $=150\text{g}$
We know that,
Water Equivalent $=$ Mass of calorimeter $\times$ Specific Heat of calorimeter
($\because$ specific heat of water =$1{\text{cal/g}}^{\circ }\text{C}$ )
$\Rightarrow$ Specific Heat of calorimeter $=\frac{15}{150}=0.1{\text{cal/g}}^{\circ }\text{C}$
Hence, option $\left(b\right)$ is the correct answer.