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51.	Heat capacity of a substance is given by C = 800 – 1600T + 25T^2, where T is temperature in degree Fahrenheit, what is the heat capacity if temperature is in degree Celsius?(a) 81T^2 + 24800(b) 81T^2 – 24800(c) 25T^2 + 24800(d) 25T^2 – 24800I have been asked this question in an international level competition.My question is taken from Temperature in division Temperature and Pressure of Basic Chemical Engineering
Answer» Right OPTION is (B) 81T^2 – 24800 To elaborate: Temperature in DEGREE FAHRENHEIT, TF = (9/5)TC + 32, REPLACING TF in C, => C = 81T^2 – 24800.

52.	Volume of an object is dependent upon its temperature in degree Celsius as V = a + bTC, what is the dependence of volume upon temperature in degree Rankine?(a) V = a + 32b + 9bTR/5(b) V = a + 492b + 9bTR/5(c) V = a + 492b + 5bTR/9(d) None of the mentionedThe question was asked by my college director while I was bunking the class.The query is from Temperature in chapter Temperature and Pressure of Basic Chemical Engineering
Answer» CORRECT ANSWER is (B) V = a + 492b + 9bTR/5 For EXPLANATION: TC = 492 + 9TR/5, => V = a + b(492 + 9TR/5), => V = a + 492b + 9bTR/5.

53.	What is the value of 273 K in degree Rankine?(a) 0^oR(b) 32^oR(c) 492^oR(d) 672^oRI have been asked this question in a national level competition.I'd like to ask this question from Temperature in division Temperature and Pressure of Basic Chemical Engineering
Answer» RIGHT option is (C) 492^oR The best I can EXPLAIN: TR = (9/5)(273 – 273) + 492 = 492^oR.

54.	What is the value of 100^oC in degree Fahrenheit?(a) 212^oF(b) 460^oF(c) 672^oF(d) 884^oFThe question was posed to me in class test.I would like to ask this question from Temperature in portion Temperature and Pressure of Basic Chemical Engineering
Answer» CORRECT option is (a) 212^oF To EXPLAIN I would say: TF = (9/5)100 + 32 = 212^oF.

55.	Let us say temperature of a body in degree Celsius and degree Rankine are related as TC = 50 + 3TR, what is the change in temperature in Kelvin, if the change in temperature in degree Rankine is 100^oR?(a) 300 K(b) 180 K(c) 100 K(d) 90 KThe question was asked during an internship interview.I'd like to ask this question from Temperature in division Temperature and Pressure of Basic Chemical Engineering
Answer» Right ANSWER is (a) 300 K To EXPLAIN: ∆TC = 3∆TR, => ∆TC = 3*100 = 300^oC, => ∆TK = ∆TC = 300 K.

56.	If change in temperate is 180 degree Rankine, what is the change in temperature in degree Celsius?(a) 100^oC(b) 180^oC(c) 212^oC(d) 273^oCThis question was posed to me in quiz.The doubt is from Temperature topic in chapter Temperature and Pressure of Basic Chemical Engineering
Answer» The correct CHOICE is (a) 100^oC The EXPLANATION is: ∆TR = 1.8∆TC, => CHANGE in temperature = 180/1.8 = 100^oC.

57.	If change in temperate is 212 degree Fahrenheit, what is the change in temperature in degree Rankine?(a) 100^oR(b) 212^oR(c) 273^oR(d) 460^oRI had been asked this question in an online interview.My question is from Temperature topic in section Temperature and Pressure of Basic Chemical Engineering
Answer» The CORRECT answer is (B) 212^oR To explain I would say: SINCE ∆TR = ∆TF, => 212^oF = 212^oR.

58.	Which of the following is greatest?(a) 10^oC(b) 10^oR(c) 10^oF(d) 10 KThis question was addressed to me by my school teacher while I was bunking the class.My doubt is from Temperature topic in division Temperature and Pressure of Basic Chemical Engineering
Answer» Right ANSWER is (a) 10^oC For EXPLANATION: 10^oC = 283 K = 50^oF = 510^oR, => 10^oC is GREATEST.

59.	Absolute zero temperature is approximately equal to?(a) -160^oR(b) -273^oR(c) -373^oR(d) -460^oRThis question was addressed to me during a job interview.I'd like to ask this question from Temperature topic in division Temperature and Pressure of Basic Chemical Engineering
Answer» CORRECT ANSWER is (d) -460^oR Explanation: Absolute ZERO temperature = 0 K = -273^oC = -460^oR.

60.	Which of the following is not a unit of temperature?(a) Celsius(b) Fahrenheit(c) Therm(d) RankineThis question was addressed to me in a national level competition.My question is from Temperature in section Temperature and Pressure of Basic Chemical Engineering
Answer» Right choice is (c) Therm To explain I WOULD SAY: Them is a unit of ENERGY, 1 therm = 10^5 BTU.