Task id12901

Task id12901

In a cylinder under a weightless piston with area S = 100 cm2 there is M = 1 kg of water at a temperature of 0°C. A heater with a power of W = 500 W is turned on in the cylinder. After what time will the piston rise relative to its initial position to a height of h=1m? Atmospheric pressure Po=1 atm. Heat of vaporization of water q = 2.25 106 J/kg. Neglect heat transfer and heat capacity of the cylinder. The heat capacity of water is 1 cal/g deg = 4.18 J/g deg.

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