A gas in a piston-cylinder device is compressed, and as a result its temperature rises. is this a heat or work interaction?

2 answers:

4 0

The answer is both. The energy in the system is composed of heat and work. because of the temperature difference, the energy would be in the form of heat. Because of the force in executing the compression in the same direction, there is also work done.

zvonat [6]2 years ago

3 0

Explanation:

When the gas is compressed under piston cylinder device it means that it is a closed system.And we know that in closed system only heat and work transfer can take place only ,there will be no any mass transfer between the system and surrounding.

During compression temperature of gas increases so the this may be cause on work done on the gas or maybe cause of heat supply to the gas.

You might be interested in

A lead fishing weight of mass 0.2 kg is tied to a fishing line that is 0.5 m long. the weight is then whirled in a vertical circ

Mariana [72]

In the movement of the weight in vertical circle, using momentum balance, the largest tension is at the bottom of the circle. This is represented by:

F = T - m g 
T = F + m g
F (centripetal) = mv^2/r
= m v^2 / r + m g 

m v^2 / r = T - m g 
T= 0.5m * 100kgm/s^2 / 0.2kg - 9.81m/s^2 * 0.5m 
T= 245 m^2/s^2

7 0

2 years ago

The primary of a step-up transformer is connected across the terminals of a standard wall socket, and resistor 1 with a resistan

alexira [117]

The turns ratio is the factor that determines voltage andcurrent. In order to have the same current across the resistorin the primary as the resistor in the secondary, then:--N(p) = Primary turnsN(s) = Secondary turnsR(2) = Primary resistorR(1) = Secondary resistor--R(2)/R(1) = N(p)/N(s)R(2) = R(1)*(N(p)/N(s))--If arbitrary values are plugged in, you will see that this step up transformer will require 2x the resistance required in the secondary, R(1), to obtain the same current. Thus R(2) will be 1/2 the value of R(1). This is due to the stepped up voltage in the secondary.

3 0

2 years ago

A person's height will increase from birth until about age 25, and it may decrease starting at about age 70. This is an example

dsp73

LOL idk sorry maybe it b! Oh wait it is !

5 0

2 years ago

Read 2 more answers

Cesium-137 undergoes beta decay and has a half-life of 30.0 years. How many beta particles are emitted by a 14.0-g sample of ces

Mandarinka [93]

Answer: $0.81\times 10^{16}$ beta particles

Explanation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass = 14.0 g

Molar mass = 137 g/mol

$\text{Number of moles of cesium}=\frac{14.0g}{137g/mol}=0.102moles$

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.