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Grade: 11

                        

A density bottle contains 104.5gms of a liquid at 34degree centigrade on heating it to 100 degree centigrade the mass of liquid expelled is 4.5gms .Then find the coefficient of apparent expansion of liquid.

6 years ago

Answers : (3)

chaitnyakishore
26 Points
							Let the density of the liquid in the density bottle be `d`
 Then volume of the liquid at 34degree centigrade V1=md=104.5d
 volume of the liquid expelled when it is heated to 100degree centigrade(V2-V1)=4.5d
 Coefficient of apparent expansion of liquid=[V2-V1]/[V1*(100-34)]
                                                                             =[4.5d]/[104.5d*66]
                                                                             =0.000652458
						
6 years ago
Vyshnavi
20 Points
							0.0007/degree centigrade
						
6 years ago
sivakrishna
37 Points
							let the density of the liquid in the density bottle be d.
given that mass of liquid m1=104.5gms
                                        t1=34
                                        m2=m1+4.                                       
                                             =104.5+4.5
                                              =109gms
we know that coefficient of apparent expansion =(V2-V1)/V1*(t2-t1)
                                                                            =(m2/d-m1/d)/m1/d*(V2-V1)
                                                                            =(109/d-104.5/d)/104.5/d*(66)
                                                                            =(4.5/d)/6897/d
                                                                            =4.5/6897
                                                                            =0.00065245759
                                                                            =0.0007/degree centigrade
						
6 years ago
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