Questions from Modern Physics


Q: A copper calorimeter can with mass 0.100 kg contains 0

A copper calorimeter can with mass 0.100 kg contains 0.160 kg of water and 0.0180 kg of ice in thermal equilibrium at atmospheric pressure. If 0.750 kg of lead at 255°C is dropped into the calorimete...

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Q: A copper pot with a mass of 0.500 kg contains

A copper pot with a mass of 0.500 kg contains 0.170 kg of water, and both are at 20.0°C. A 0.250-kg block of iron at 85.0°C is dropped into the pot. Find the final temperature of the system, assuming...

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Q: In a container of negligible mass, 0.200 kg of

In a container of negligible mass, 0.200 kg of ice at an initial temperature of -40.0°C is mixed with a mass m of water that has an initial temperature of 80.0°C. No heat is lost to the surroundings...

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Q: A 6.00-kg piece of solid copper metal at

A 6.00-kg piece of solid copper metal at an initial temperature T is placed with 2.00 kg of ice that is initially at -20.0°C. The ice is in an insulated container of negligible mass and no heat is ex...

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Q: Before going in for his annual physical, a 70.0

Before going in for his annual physical, a 70.0-kg man whose body temperature is 37.0°C consumes an entire 0.355-L can of a soft drink (mostly water) at 12.0°C. (a). What will his body temperature b...

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Q: An ice-cube tray of negligible mass contains 0.290

An ice-cube tray of negligible mass contains 0.290 kg of water at 18.0°C. How much heat must be removed to cool the water to 0.00°C and freeze it? Express your answer in joules, calories, and Btu.

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Q: How much heat is required to convert 18.0 g of

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.

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Q: An open container holds 0.550 kg of ice at -

An open container holds 0.550 kg of ice at -15.0°C. The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 800.0 J/min for 500.0 min. (a). After how many...

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Q: A welder using a tank of volume 0.0750 m3 fills

A welder using a tank of volume 0.0750 m3 fills it with oxygen (molar mass 32.0 g/mol) at a gauge pressure of 3.00 × 105 Pa and temperature of 37.00C. The tank has a small leak, and in time some of t...

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Q: What must the initial speed of a lead bullet be at 25

What must the initial speed of a lead bullet be at 25.0°C so that the heat developed when it is brought to rest will be just sufficient to melt it? Assume that all the initial mechanical energy of th...

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