A chef, on finding his stove out of order, decides to boil the water for his wife's coeffe by shaking it in a thermos flask. Suppose, that he uses tap water at 15?C and chef making 30 shakes each minute. Neglecting any loss of thermal energy by the flask, how long must he shake the flask until the water reaches 100?C?

Question

A chef, on finding his stove out of order, decides to boil the water for his wife's coeffe by shaking it in a thermos flask. Suppose, that he uses tap water at 15?C and chef making 30 shakes each minute. Neglecting any loss of thermal energy by the flask, how long must he shake the flask until the water reaches 100?C? (A)  9.13× 103N/m2  (B)  text5. text25× text10 text3 textmin  (C)  [ textFL textT- text2 ]  (D)  [ textF textL text2T- text2 ]

Tardigrade Admin · Accepted Answer

Hence, [ textF2 textL textT text-2 ] - text273. text15° textF - text453. text15° textF - text459. text67° textF - text491. text67° textF

$9.13 \times 10^{3} N / m^{2}$

$5.25 \times 1 0^{3} min$

$[FL T^{- 2}]$

$[F L^{2} T^{- 2}]$

Hence, $[F^{2} L T^{-2}]$ $- 273.15^{\circ} F$ $- 453.15^{\circ} F$ $- 459.67^{\circ} F$ $- 491.67^{\circ} F$

9.13×103N/m2

5.25×103min

[FLT−2]

[FL2T−2]

Hence, [F2LT-2] −273.15∘F −453.15∘F −459.67∘F −491.67∘F

$9.13 \times 10^{3} N / m^{2}$

$5.25 \times 1 0^{3} min$

$[FL T^{- 2}]$

$[F L^{2} T^{- 2}]$

Hence, $[F^{2} L T^{-2}]$ $- 273.15^{\circ} F$ $- 453.15^{\circ} F$ $- 459.67^{\circ} F$ $- 491.67^{\circ} F$