A). A 3.00 gram lead bullet is moving at 180. m/s andenters a bag of sand and st

Question

A). A 3.00 gram lead bullet is moving at 180. m/s andenters a bag of sand and stops. By what amount does thetemperature of the bullet change if all its kinetic energy becomesthermal energy. B). A certain mass of hydrogen gas occupies a volume of370. ml at 16.0'c and 150. kPa. Calculate the volume at-21'c and 420 kPa. 'c = celsius A). A 3.00 gram lead bullet is moving at 180. m/s andenters a bag of sand and stops. By what amount does thetemperature of the bullet change if all its kinetic energy becomesthermal energy. B). A certain mass of hydrogen gas occupies a volume of370. ml at 16.0'c and 150. kPa. Calculate the volume at-21'c and 420 kPa. 'c = celsius

Explanation / Answer

specific heat of lead: C=127 J/kg.K the change in temperature T , kinetic energy transfers tothe thermal energy T*m*C=m.v2/2 => T=127.6 K ; m ismass of the bullet (b)we have the equation for the ideagasp*V/T=constant therefore: 150kPa*370ml/(16+273)=420kPa*V/(-21+273) ; V is thevolume of the gas => V=115.2 ml need to convert celsius --> Kelvin

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