Determine the amount of heat (in kJ) needed to take a 37.9-gram piece of ice (Delta Hfus = 6.02 kJ mol) to 37.9 C liquid water. Calculate the amount of heat required to convert 50.0 g of ice at -10.0 °C to +110.0 °C at 1 atm. \Delta H_{fus} of ice = 334 J/g, C_s...
How do you rearrange D= PM/RT to solve for temperature or pressure? Gas Laws: The ideal gas law allows us to determine the value of an unknown variable provided that we know the other quantities. As no gas follows the ideal gas law the constantRis introduced for each specific g...
Next, we need to determine the value of ln P at a specific temperature. We can do this by using the given information of the graph, which shows ln P on the y-axis and 1/T on the x-axis. We can choose a specific point on the graph, such as (1/T = 0.001,...
In engineering and HVAC design, it's used to determine the best conditions for human comfort. I'll mention a couple more charts in a minute, but first a bit about Psychrometry which is the study of the physical and thermodynamic properties of air and water vapor mixtures. Air and water ...
How to determine the process if it is endothermic Describe briefly the term "exothermic reaction". Is energy created during an exothermic reaction? What is an example of an exothermic reaction? Is sublimation exothermic? Is ice melting an endothermic reaction? Is baking bread endothermic or ...
Q. How do we determine the calorific value of food? Ans.To determine the number of kcals in a given food we directly measure the energy that it produces. Place the food in a sealed container i.e. a bomb calorimeter and surround it by water. Also, burn the food was complete. Then ...
that their surface finish will gradually lose effectiveness over time. For ENIG boards, the industry usually sets a shelf life of 12 months. After this time, the thickness of the gold layer and the quality of the storage conditions will determine whether the board can still be used. If the...
A kettle draws power of 2000 W and has an efficiency of 85%. You fill the boiler with 1.5 liters of water with a temperature of 15 degrees Celsius. The kettle's thermostat broke and the water boils even after it has reached ...
How do intermolecular forces and kinetic energy interact to determine at what point a liquid will boil? What does it imply to state a liquid is volatile? Do volatile liquids have large or small vapor pressures at room temperature? What strengths of intermol...
How do intermolecular forces and kinetic energy interact to determine at what point a liquid will boil? The boiling point of alcohol is 78.3 degrees Celcius at 760 mm atm pressure. Would the boiling point be higher or lower than 78.3 degrees Celcius...