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Please Help me out with these!!!!Ex. 4,5,8,9

ALT ch 19-20 Hw Ans 100, 1bem2 A hole of cross-sectional area 100 cm is cut in a piece of steel at 20 Ex.4 ° C. What is the area of 6 the hole if the steel is heated from 20° C to 1000 C? Ex.5 A beaker is filled with 2000 cm3 of turpentine at a room temp. of 20° C. If beaker and contents are put in a refrigerator so that the temp. becomes 50 turpentine? For turp C, what is the new volume of the entine, β 900 x 10-6 / °C. Ignore the contraction of the beaker. (a) as DVs-27cm Ex.6 Under a pressure of 2.0 acting on the gas is increased to whatís the volume ofthe gas? 02 kPa, a confined gas, has a volume of 2.6 m. The presure 5.0x 10 kPa. The temperature of the gas remains constant. 。MD)(20 (GokPOU2 -CooleyEx.7 An inflated balloon occupies a volume of 24 liters. The balloon is weighted and allowed to drop to the bottom of a pond of depth 52 m. What is the volume at this depth? (one atmoshpere of pressure supports a column of water 10.4 m high. Assume the pressure acting on the balloon before it is submerged is 1 atm.) Omi Ex.8 A volume of 22 m3 of nitrogen gas at 20° C is heated under constant 1670 C. What is the new volume? pressure to Ex.9 201. of gas are kept under a pressure of 1 atm. at a temperature of 273° K. The gas temperature is lowered to 90° K. The pressure is increased to 1.5 atm. What is the new volume? 4.Y0L

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