A gas is compressed from an initial volume of 5.65 L to a final volume of 1.24 L by an external pressure of 1.00 atm. During the
1 answer:
This is an incomplete question. The complete question is:
A gas is compressed from an initial volume of 5.50 L to a final volume of 1.20 L by an external pressure of 1.00 atm. During the compression the gas releases 128 J of heat. What is the change in internal energy of the gas?
Answer: 325 Joules
Explanation:
According to first law of thermodynamics:
=Change in internal energy
q = heat absorbed or released
w = work done or by the system
w = work done on the system= {Work is done on the system as the final volume is lesser than initial volume and is positive}
w = {1Latm=101.3J}
q = -122J {Heat released by the system is negative}
Thus the change in internal energy of the gas is 325 Joules
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1.52g
Explanation:
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Force = 125N
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Acceleration of the bicycle = ?
Solution:
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Force = mass x acceleration
Acceleration = =
= 1.52g
Given the speed and the distance, to find time you can use the formula speed is equal to distance over time. From there you can manipulate the equation for time to equal the distance divided by speed. Time is equal to 18.4 meters divided by 35m/s which equals 0.526 seconds.
