Chapter 1, Problem 1P

?=kg ?=N/m

Gas at 70 bars gage pressure and 37.8°C is contained in a 12,900-cm3 cylinder. A piston compresses the volume to 9680 cm3 while the gas is heated to 93.3°C. What is the final pressure in the cylinder in bars?

the specific heat (cp or cv) can also be understood as a "capacity or ability of a given material to store "heat". In this way, we can say that: 1- the greater the specific heat, the greater the amount of "heat" needed to cause an increase or decrease in temperature per unit mass of the material.2- the higher the specific heat, the lower the amount of "heat" needed to cause an increase or decrease in temperature per unit mass of the material3- the lower the specific heat, the greater the amount of "heat" needed to cause an increase or decrease in temperature per unit mass of the material4- the lower the specific heat, the amount of "heat" needed to cause an increase or decrease in temperature per unit mass of the material does not change5-the higher the specific heat, the amount of "heat" needed to cause an increase or decrease in temperature per unit mass of the material does not change choose only one of the above alternatives as correct

Determine the length, in cm, necessary so that a pendulum completes 50,000 periods a day.

What is the specific internal energy of water at 50°C with a specific enthalpy of 1500 kJ/kg? Report your answer to one decimal place using rounding.

We have superheated steam at a pressure of 0.05 bar and temperature of 366.62 oC. What is the specific volume in units of m3/kg? Use the steam tables and report your answer to three decimal places. Note that in the steam tables, the specific volume is reported in units of m3/kg.

Calculate the specific weight, density and specific gravity of one litre of a liquid, which weighs 7N. Select one: 1. 7000 N/m3, 713.5 kg/m3, 0.7135 2. 700 N/m3, 71.35 kg/m3, 0.07135 3. 70 N/m3, 7.135 kg/m3, 0.007135 4. None of the above.

What is the mass in kilograms and weight in Newtons (g = 9.65 m/s2) of (a) a 4000-lbm automobile, (b) a 235-lbm full back? Find the mass in grams and weight in dynes of (c) 77 grams of moisture, (d) 12 ounces of salt.

What is the weight of a block of ice 24 in. by 24 in. , if ice weighs 92 percent as much as water, and water weighs 62.5 ln per cu.ft?