Ask question Search Order By: ActiveCategoryTagClear Filter 0 Votes 1 Ans A 10kW drilling machine is used to drill a bore in a small aluminum block of mass 8.0 kg. How much is the rise in temperature of the block in 2.5 minutes assuming 50% of power is used up in heating the machine itself or lost to the surrounding? Specific heat of aluminium = 0.91 Jg-1 0C-1 104 viewsAditya Bhatt Answered question 22 January 2024EducationPhysics 0 Votes 1 Ans In summer, when the valve of a bicycle tube is removed, the escaping air appears cold. Why? 51 viewsAditya Bhatt Answered question 22 January 2024 0 Votes 1 Ans An electric heater supplies heat to a system at a rate of 100W. If the system performs work at a rate of 75 Joules per second. At what rate is the internal energy increasing? 109 viewsAditya Bhatt Answered question 22 January 2024EducationPhysics 0 Votes 1 Ans Consider the cyclic process A B C A on a sample 2 mol of an ideal gas as shown. The temperature of the gas at A and B are300 K and 500K respected. Total of 1200 J of heat is with drawn from the sample. Find the work done by the gas in part BC 72 viewsAditya Bhatt Answered question 21 January 2024 0 Votes 1 Ans A Thermometer has the wrong calibration. read -10 C 119 viewsAditya Bhatt Answered question 21 January 2024EducationPhysics 0 Votes 1 Ans A cylinder containing one gram molecule of the gas was compressed adiabatically until its temperature rise from 27C to 97C. Calculate the work done and heat produced in the gas (γ=1.5) 73 viewsAditya Bhatt Changed status to publish 20 January 2024 1 Votes 1 Ans A certain gas at atmospheric pressure is compressed adiabatically so that its volume becomes half of its original volume. Calculate the resulting pressure in Nm-2. (γ=1.4) 135 viewsAditya Bhatt Answered question 20 January 2024EducationPhysics 0 Votes 0 Ans Find the final volume of a gram molecule of a gas after an isothermal expansion at 1270C, if the original volume is 400c.c given the amount work done by a gram molecule of a gas during expansion is 2302.6 joule. 50 viewsAditya Bhatt Changed status to publish 19 January 2024 1 Votes 1 Ans The adiabatic compression ratio in a Carnot reversible cycle is 9, when the temperature of the source is 2270C. Calculate the temperature of the sink. (γ=1.5) 86 viewsAditya Bhatt Answered question 19 January 2024 « Previous 1 2 … 14 15 16
