Chemistry

Chemistry, 27.07.2019 10:00, hasshh

A595 ml sample of chlorine gas at 24.7°c is held at constant pressure while it is heated and the volume of the gas expands to 876ml. what is the new temperature in kelvin? a) 83.7 k b) 202 k c) 365 k d) 438 k

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Physics, 03.07.2019 02:30, janai3602

A)a sample of gas expands from a volume of 2.00 m3 at a pressure of 3.0x105 pa to a volume of 5.00 m3 at a pressure of 1.5x105 pa. how much work is done by the gas if it first expands at constant pressure, then its pressure is decreased at constant volume? how much work is done by the gas if its pressure is first decreased at constant volume, then it is allowed to expand at constant pressure? b)what are the heat capacities at constant volume and at constant pressure of one mole of an ideal diatomic gas? c)2.00 m3 of a diatomic ideal gas initially at a temperature of 293 k is compressed adiabatically and reversibly from a pressure of 1.00 x 104 pa to 6x that pressure. what are the final volume and temperature of the gas? d)argon may be considered to be an ideal, monatomic gas with 3 degrees of freedom. a sample of 10.3 moles of argon initially occupies a volume of 0.250 m3 at a pressure of 1.00 x 105 pa and temperature of 292 k. the sample is isothermally compressed to one-fifth of its original volume what is the change in entropy of the gas? e)the specific heat capacity of granite is 796 j k-1 kg-1. how much energy is required to raise the temperature of 4.0 kg of granite from 14 c to 30 c? (assume no heat losses).

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Engineering, 19.07.2019 21:20, Shelleycarousel

Air contained within a piston-cylinder assembly is slowly heated. during this process the pressure first increases linearly with volume where p1 = 100 kpa, p2 = 450 kpa, v1 = 0.4 m3 and v2 = 1.5 m^3. after this initial change the pressure is constant at 450 kpa and the volume expands to 2.1m^3. determine the total work done in kj.

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Chemistry, 27.07.2019 08:00, Deagon4434

A595 ml sample of chlorine gas at 24.7°c is held at constant pressure while it is heated and the volume of the gas expands to 876ml. what is the new temperature in kelvin? a) 83.7 k b) 202 k c) 365 k d) 438 k

Answers: 2

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Chemistry, 21.09.2019 14:50, eayoungin

7. a movable piston contains a sample of 680 ml of neon gas with a temperature of -5 degrees c. when the piston is heated the sample expands to a volume of 1.32 l. what is the new temperature of the neon gas? 8. a helium balloon has a volume of 2600 cm3 when the temperature is 21 degrees c. what is the volume of the balloon when it’s placed in a freezer with a temperature of -15 degrees c? 9. the kelvin temperature of sample of 650 cm3 sample of ammonia gas is doubled. what is the new volume of the gas? assume that the pressure stays constant. 10. a movable piston is allowed to cool from 392 degrees f to 104 degrees f. if the initial volume is 105 ml, what will be the new volume?

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