In an insulating box, there is a 140.0g block of lead whose temperature is 100K and...

In an insulating box, there is a 140.0g block of lead whose temperature is 100K and a 70.0g block of tungsten whose temperature is 300K. (a) What is the equilibrium temperature of the two-block system? (b) What is the change in the internal energy of the system between the initial and the equilibrium state? (c) What is the change in the entropy of the system? (specific heat of tungsten: 0.0321cal/g · K, molar specific heat of tungsten: 24.8J/mol · K, specific heat of lead: 0.0305cal/g ·K, molar specific heat of lead: 26.5J/mol·K

Expert Solution

genius_generous answered 2 years ago

Consider a block-spring system inside a box, as shown in the figure. The block is attached...

Consider a block-spring system inside a box, as shown in the figure. The block is attached to the spring, which is attached to the inside wall of the box. The mass of the block is 0.2 kg. For parts (a) through (f), assume that the box does not move. Suppose you pull the block 10 cm to the right and release it. The angular frequency of the oscillations is 30 rad/s. Neglect friction between the block and the bottom of...

A 20 kg block of iron and a 50 kg block of lead are sealed together...

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A block is at rest on a plank whose angle can be varied. The angle is...

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1. A block of an alloy of mass 27.0 g and at a temperature of 277.22...

1. A block of an alloy of mass 27.0 g and at a temperature of 277.22 K is placed in a calorimeter containing 41.0 g of water at 357.74 K. If the final temperature of the alloy and water is 303.59 K, calculate the specific heat (in J/g/K) of the metal. The specific heat of water is 4.184 J/g/K. Express your answer to three significant figures in scientific notation. 2.A 0.439 g sample of solid N(CH3)4Cl (s) is dissolved in...

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A block with a mass m = 2.12 kg is pushed into an ideal spring whose...

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A block is at rest on an inclined plane whose elevation can be varied. The coefficient...

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A 80.0 cm3 box contains helium at a pressure of 2.00 atm and a temperature of...

A 80.0 cm3 box contains helium at a pressure of 2.00 atm and a temperature of 80.0 ∘C. It is placed in thermal contact with a 220 cm3 box containing argon at a pressure of 4.50 atm and a temperature of 420 ∘C. A)What is the initial thermal energy of each gas? B)What is the final thermal energy of each gas? C)How much heat energy is transferred, and in which direction? D)What is the final temperature? E)What is the final...

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