A rigid container holds 0.30g of hydrogen gas. Part A) How much heat is needed to change the temperature of the gas from 50 K to 100 K?
Express your answer to two significant figures and include the appropriate units.
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Part B) How much heat is needed to change the temperature of the gas from 250 K to 300 K?
Express your answer to two significant figures and include the appropriate units.
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Part C) How much heat is needed to change the temperature of the gas from 2250 K to 2300 K?
Express your answer to two significant figures and include the appropriate units.
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Part A:     to two significant figures

Part B:     to two significant figures

Part C:     to two significant figures

Explanation:

Given that :

mass of the hydrogen = 0.30 g

the molar mass of hydrogen gas molecule = 2 g/mol

we all know that:

number of moles = mass/molar mass

number of moles = 0.30 g /2 g/mol

number of moles = 0.15 mol

For low temperature between the range of 50 K to 100 K, the specific heat at constant volume for a diatomic gas molecule =

For Part A:

to two significant figures

Part B. For hot temperature,

to two significant figures

Part C. For an extremely hot temperature,

to two significant figures

most of them using statistics and defining how things are being measured

the total distance traveled by the car is

30km + 49km = 79 km .