Molecular Physics | Thermodynamics Answers

Suppose you are given a one mole of ideal gas, in an initial state p=6 atm, v=3L, and in a clock wise direction, you maneuvered the system reverisbly in a path given by (v-6)²

+(p-6)² =16 in the pv plane

Deduce the amount of work done by the gas as a result of this process

Find out the change if the internal energy of the gas

Calculate the minimum and maximum temperature attained by the gas during the cycle

The hot water tap of a bath delivers water at 80°c at a rate of 10kg min-1.The cold water tap of the bath delivers water at 20°c at the rate of 20kg min-1. Assuming that both taps are left for 5minutes, calculate the final temperature of the bath water

Up to how many degrees we can heat 5litres of water, the temperature of which is + 20C, using 21 g of pretrol? Q=46 000 000 J/kg c=4200J/kg water. m= 0,021kg petrol m=5kg water. T2=? T1= +20C. Q= q*m= 46 000 000 * 0,021= 966 000 J/kg? And what next

Up to how many degrees we can heat 5litres of water, the temperature of which is + 20C, using 21 g of pretrol? Answer 44C.how? Q=46 000 000 J/kg c=4200J/kg water. m= 0,021kg petrol m=5kg water. T2=? T1= +20C. Q= q*m= 46 000 000 * 0,021= 966 000 J/kg?

An ideal gas thermometer and a mercury thermometer are calibrated at 0 oC and at 100 oC. The thermal expansion coefficient for mercury is 𝛼 = 1 𝑉0 ( 𝜕𝑉 𝜕𝑇 ) 𝑃 = 1.817𝑥10−4 + 5.90𝑥10−9𝜃 + 3.45𝑥10−10𝜃² , where 𝜃 is the value of the Celsius temperature and 𝑉0 = 𝑉 at 𝜃 = 0. What temperature would appear on the mercury scale when the ideal gas scale reads 50 oC? 

Four hundred grams of aluminum at 100 ᵒ C is dropped into 100 g of water at 20 ᵒ C

contained in a copper calorimeter of mass 80 g. What is the final temperature of the mixture?

1. A 560.0 N cyclist sits on a bicycle seat and compresses the two springs that support it.  The spring constant equals 2.2 X 104 N/m. 
2. How much is each spring compressed?
3. By how much does the compression increase in each spring’s elastic PE?

Steam at 30 bar is contained in a cylinder behind a piston the initial volume being 0.08067 m'kg calculate the heat flow to or form cylinder and the work done by the steam a) According to the low pys - C to final volume 0.2 m / kg. b) According to a linear law to final dry saturated volume of 0.1047m / kg

When a boxer is moving away from a punch , the force experienced is reduced because ?

A vertical spring has a force constant of 125 N/M. by how much will the spring be compressed if a mass of 0.525 kg placed on top of it?