Chapter 3: Q45E (page 576)

How much heat is required to convert 18.0 g of ice at $- 10.0 ° C$ to steam at $100.0 ° C$ ? Express your answer in joules, calories, and Btu.

Short Answer

Expert verified

The heat energy involved will be $36.4 \times 10^{3} J = 8.7 \times 10^{3} c a l = 34.5 B t u$ .

Step by step solution

Stages in the given process

The sample will go through four stages, the first stage includes the changing of the temperature of the ice but without any changes in the phase "it still ice", the second stage starts when the ice reaches its melting point and ends when all of the ice melts, the third stage includes rising of the temperature of the water but without any changes in the phase, the final stage includes the evaporation of the water.

Calculate the heat energy

The expression of heat energy involved will be

Q_{t o t a l} = [0.012 \times 2100 \times (0 + 10)] + (0.012 \times 33.4 \times 10^{4}) + [0.012 \times 4190 \times (100 - 0)] + (0.012 \times 2256 \times 10^{3}) Q_{t o t a l} = 36.4 \times 10^{3} J

The conversions of units will be as follows

$Q_{t o t a l} = 36.4 \times 10^{3} J \times \frac{1 c a l}{4.186 J} = 8.7 \times 10^{3} c a l Q_{t o t a l} = 36.4 \times 10^{3} J \times \frac{1 B t u}{1055 J} = 34.5 B t u$

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How much heat is required to convert 18.0 g of ice at $- 10.0 ° C$ to steam at $100.0 ° C$ ? Express your answer in joules, calories, and Btu.

Short Answer

Step by step solution

Stages in the given process

Calculate the heat energy

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How much heat is required to convert 18.0 g of ice at -10.0°C to steam at 100.0°C? Express your answer in joules, calories, and Btu.

Short Answer

Step by step solution

Stages in the given process

Calculate the heat energy

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Physics Textbooks

Electric Charge Field and Potential

Work Energy and Power

Physics of Motion

Torque and Rotational Motion

Fluids

Physical Quantities And Units

Study anywhere. Anytime. Across all devices.

How much heat is required to convert 18.0 g of ice at $- 10.0 ° C$ to steam at $100.0 ° C$ ? Express your answer in joules, calories, and Btu.