Question

question 17
0.75 pts
the specific heat capacity of liquid mercury is 0.14 j/gk. how many joules of heat are needed to raise the temperature of 5.00 g of mercury from 15.0°c to 36.5°c?

7.7 * 10^2 j
15 j
36 j
0.0013 j
1.7 j

question 18
0.75 pts
the specific heat capacity of liquid water is 4.18 j/g-k. how many joules of heat are needed to raise the temperature of 5.00 g of water from 25.1°c to 65.3°c?

48.1 j
840 j
1.89 * 10^3 j
2.08 * 10^-2 j
54.4 j

Explanation:

Identify given values for Question 17

Using the Specific Heat Capacity knowledge point

$$
LATEXBLOCK0
$$

Calculate heat required for Question 17

Using the Specific Heat Capacity knowledge point

$$
LATEXBLOCK1
$$

Identify given values for Question 18

Using the Specific Heat Capacity knowledge point

$$
LATEXBLOCK2
$$

Calculate heat required for Question 18

Using the Specific Heat Capacity knowledge point

$$
LATEXBLOCK3
$$

Answer:

Question 17

• (A) \(7.7 \times 10^2\text{ J}\)
• (B) \(15\text{ J}\) (Correct answer)
• (C) \(36\text{ J}\)
• (D) \(0.0013\text{ J}\)
• (E) \(1.7\text{ J}\)

Question 18

• (A) \(48.1\text{ J}\)
• (B) \(840\text{ J}\) (Correct answer)
• (C) \(1.89 \times 10^3\text{ J}\)
• (D) \(2.08 \times 10^{-2}\text{ J}\)
• (E) \(54.4\text{ J}\)