Three solid objects of the same material and of equal mass –
a sphere, a cylinder (length = diameter) and a cube – are at
5000C initially. These are dropped in a quenching bath
containing a large volume of cooling oil each attaining the
bath temperature eventually. The time required for 90%
change of temperature is smallest for
a) cube
b) cylinder
c) sphere
d) equal for all the three
whyyyyyyy???????
Answer Posted / debshree
ANSWER 1 IS CORRECT
Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
i am going to appear vedanta written test so plz can any body suggest me for this on madhu.5393@gmail.com
Explain what are the affinity laws associated with dynamics pumps?
what is the cast iron grade of composition of c-3.06% , Mn- 0.48% , Si-2.38% , S-0.088% , P-0.092% , Cr-0.12% , Ni- 0.012% , Mo-0.00%
Explain what are some common precipitating agents used to remove metals from aqueous waste streams?
What effect does choking a vertical thermosiphon have on the heat transfer rate?
What are pcbs?
Is there any way to remove residual product left in pipes after a batch operation?
What are the reasons of removal of particles from effluent gas?
What is the import procurement cycle? What are the customization steps in sap?
How much maximum power can be generated by 320v, 10kg-cm synchronous motor if shaft is rotated mechanically at 50 to 60 rpm?
What are the apt definitions for apparent power, active power and reactive power?
Explain how do you design a vapor-liquid separator or a flash drum?
Explain can large temperature differences in vaporizers cause operational problems?
sir, kindly explain to me that how to calculate volume of torrispherical vessel which is used in pharma company ss reactor bottom dish volume. thank u.
how can I find out a sulfuric acid recovery plant disigner?