Plank’s equation is being used to estimate the convective heat transfer coefficient in a food being frozen in an air-blast freezer. it took a product 20 minutes to freeze in the freezer. the product is in the shape of an infinite cylinder with a diameter of 2 cm. the properties of the product are as follows: thermal conductivity of frozen material = 1.8 w/(m °c), density = 890 (kg/m3), latent heat of fusion = 260 kj/kg, and initial freezing point = -1.9 °c. the initial temperature of the product is 25°c and the air temperature is -35°c. estimate the heat transfer coefficient of the food.

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d