Explain the roles of piston valve of a water pump.

The upstroke of the piston draws water, through a valve, into the lower part of the cylinder. On the downstroke, water passes through valves set in the piston into the upper part of the cylinder. On the next upstroke, water is discharged from the upper part of the cylinder via a spout.

Explanation:

this means that the temperature of both substances will be equal

no

sodium is solid at rt