1.24) why must one only use the energy from 6.8 *10^7 - 5.97*10^7 to find the Te
ID: 2077917 • Letter: 1
Question
1.24) why must one only use the energy from 6.8 *10^7 - 5.97*10^7 to find the Temperature associated with the pressure to be maintained? along a linear liquid surface normal to a line drawn in tension. Line forces are solid-liquid interface. An example of a line force is surface expressed as force per unit length (N/m). PROBLEMS (SECTION 1.2) .2.1. How much energy must be added to ice at -20°C to produce 250 liters of water at +20°C? 2. Compute the heat energy (in calories) required to evaporate 1.200 g of water at 45c under an ambient pressure of 0.9 bars copyright Prentice Ha 2.3. At 0°C and at an absolute pressure of 911 Nim2, 100 g of water. 100 g of vapor, and ioo g of ice are in equilibrium in a sealed thermal container. Determine how much energy should be removed to freeze all the water and vapor. Printed from www.chegg com 1.2.4. What pressure must be maintained in a closed vessel to turn 100 liters ofwater at 10 Centirely into water vapor by u es of energy? 1.2.5. A large kitchen pot initially contains 5 kg of water at 25 A burner is turned on and heat is added the water at a rate of 500 calisec. Determine how many minutes it will take for one-half of the mass to evaporate at standard atmospheric pressure. 1.2.6. Determine the final temperature of a water-ice bath that is allowed lo establish equilibrium in a thermal container. The water-ice bath is produced when 5 slugs of ice (specific heat 0.46 BTU/Ibm F) at 20 F is mixed with 10 slugs of water (specific heat 1.0 BTU/Ibm F) at 120 F. (Note: 1 slug 32.2 lbm, and the heat of fusion is 144 BTU/lbm.) (SECTION 1.3) A container weighs 863 N when filled with water and 49 N when empty. How much water (at 20°C) does the container hold in cubic meters? Newton's second law Derive the relationship between specific weight and density starting with ng neer ng sys
Explanation / Answer
The effect of temperature and pressure on a liquid can be explained in terms of Kinetic theory.
If the liquid is heated it forms gas,
According to Boyle’s law, the temperature is inversely proportional to the pressure.
If the pressure of the liquid is decreased, the temperature increases.
Water evaporates even at room temperature, if the pressure is decreased sufficiently.
The minimum and maximum energies needed to evaporate the water at constant volume lies in the range mentioned,
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