Astudent conducts an experiment to determine the effect of adding salt on the boiling temperature of water. the results are shown below. sample amount of salt boiling temperature sample 1 0 g 100.0° c sample 2 2 g 102.3° c sample 3 5 g 104.8° c sample 4 10 g 107.5° c which is a reasonable hypothesis for this experiment? question 25 options: if salt is added to water, the water will boil at a higher temperature salt makes water boil if water is boiling, it must have salt added to it if salt is added to water, the water will get cloudy

The hypothesis that has been reasonable for the experiment has been the addition of the salt there has been the rise in the boiling temperature of the water. Thus, option A is correct.

The boiling temperature at been the point at which the water has been converted to steam. The boiling temperature of the water has been 100 degrees celsius.

With the addition of salt, there has been found that the temperature of boiling has been increased. Thus, the addition of electrolytes has been responsible for the rise in the boiling temperature of the water.

Thus, the hypothesis that has been reasonable for the experiment has been the addition of the salt there has been the rise in the boiling temperature of the water. Thus, option A is correct.

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answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.