Junior Class 1 Answered

80gms of water at 30°c poured on large ice block at 0°c the mass of ice that melts is

Asked by Prabhakararao | 09 Apr, 2016, 07:00: PM

Expert Answer

$begin mathsize 14px style Hi space Prabhakarrao comma The space heat space released space by space water space is straight Q equals mcΔT equals 80 cross times 4.2 cross times 30 equals 10080 space straight J Now comma space the space amount space of space heat space required space by space one space gram space of space ice space to space melt space is space 336 space straight J Hence comma space if space 10080 space straight J space of space heat space is space available comma space the space mass space of space ice space melted space is straight m equals 10080 over 336 equals 30 space straight g end style$