Engineering Mechanical

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pnfcre562

Engineering

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I have a bunch of questions here if you would not mind taking a look

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mech engineering.docx

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Q1. A 3-litre vessel contains gas at a pressure of 200 kPa. Five litres of gas at the same pressure is forced into the vessel. Calculate the new gas pressure. Q2. A vessel contains 2 litres of gas at a pressure of 300 kPa and a temperature of 27 degrees C. 3 litres of gas at the sae temperature and pressure are forced into the vessel. The temperature is the raised to 127 degrees C. Calculate the new pressure of gas. Q3. What percentage increase in volume takes place in the contents of a kerosene tank when the temperature is raised from 4 degrees C to 325K? Q4. The copper pipe in the previous question has a mass of 25kg. Calculate the amount of heat energy required to raise its temperature from 100 degress C to 1000 degress C. Q5. How much heat is required to change 4kg of ice into -15oC into steam at 100oC. Q6. Find the enthalpy of steam at 0.4 MPa and 0.7 dryness. Q7. Determine the amount of heat required to convert 4 kg of water at = 38 degrees C into dry satuarted steam at 1 MPa gauge pressure. Q1. A 3-litre vessel contains gas at a pressure of 200 kPa. Five litres of gas at the same pressure is forced into the vessel. Calculate the new gas pressure. Q2. A vessel contains 2 litres of gas at a pressure of 300 kPa and a temperature of 27 degrees C. 3 litres of gas at the sae temperature and pressure are forced into the vessel. The temperature is the raised to 127 degrees C. Calculate the new pressure of gas. Q3. What percentage increase in volume takes place in the contents of a kerosene tank when the temperature is raised from 4 degrees C to 325K? Q4. The copper pipe in the previous question has a mass of 25kg. Calculate the amount of heat energy required to raise its temperature from 100 degress C to 1000 degress C. Q5. How much heat is required to change 4kg of ice into -15oC into steam at 100oC. Q6. Find the enthalpy of steam at 0.4 MPa and 0.7 dryness. Q7. Determine the amount of heat required to convert 4 kg of water at = 38 degrees C into dry satuarted steam at 1 MPa gauge pressure.
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