Recent questions without answers

0 votes

0 answers 55 views

What specific steps can be taken by universities and colleges to better prepare chemistry students for their future careers in the chemical industry, where practical skills are just as important as theoretical knowledge?

asked 5 days ago in Chemical education by RoyceDeMaist (980 points)

0 votes

0 answers 78 views

A student needs to prepare a solution containing 50 g of ethanol (C2H5OH) dissolved in 250 g of water (H2O) at 25°C. Assuming the heat of mixing for ethanol and water is -5.02 kJ/mol, calculate the heat released or absorbed when the two substances are mixed. Express your answer in kJ.

asked Jan 22 in ThermoChemistry by LeeCarron384 (470 points)

0 votes

0 answers 28 views

A chemical plant has a mixture of ethanol and water with a known composition. The plant wants to separate the mixture using a distillation column. As a chemistry student, design a feasible distillation column that can effectively separate the mixture with the given composition. You need to specify the height, diameter, number of trays, reflux ratio, and other necessary parameters needed for designing the column. You are also required to provide an explanation for the choice of each parameter.

asked Jan 22 in Psychology by OliveHutton (470 points)

0 votes

0 answers 46 views

How can attitude change be achieved?

asked Jan 20 in Psychology by RitaHer55753 (710 points)

0 votes

0 answers 5 views

When considering social change, what is the term for the process of building relationships with other organisations?

asked Jan 20 in Psychology by ShellaHeyes3 (310 points)

0 votes

0 answers 33 views

According to Marcia, which identity status is characterized by active exploration but no commitment?

asked Jan 20 in Psychology by KellyeBucher (270 points)

0 votes

0 answers 43 views

What is the identity status of an individual who is currently exploring different identity options?

asked Jan 20 in Psychology by LanoraWicken (290 points)

0 votes

0 answers 27 views

According to the prospect theory, what do people value more: gains or losses?

asked Jan 20 in Psychology by HeatherLardn (350 points)

0 votes

0 answers 22 views

Who proposed the principle of common fate?

asked Jan 20 in Psychology by EnriquetaPat (350 points)

0 votes

0 answers 22 views

Who proposed the field theory?

asked Jan 20 in Psychology by BeatrisQ9738 (430 points)

0 votes

0 answers 31 views

Who put forth the principle of closure?

asked Jan 20 in Psychology by CheriMartz3 (290 points)

0 votes

0 answers 28 views

Who established the Gestalt theory of learning?

asked Jan 20 in Psychology by VenusMonash4 (850 points)

0 votes

0 answers 21 views

Who distinguished between 'figure' and 'ground'?

asked Jan 20 in Psychology by LamarAthaldo (210 points)

0 votes

0 answers 24 views

Who proposed the cognitive development theory?

asked Jan 20 in Psychology by RachaelBousq (390 points)

0 votes

0 answers 19 views

Who came up with the theory of classical conditioning?

asked Jan 20 in Psychology by FelipaWainsc (210 points)

0 votes

0 answers 21 views

When did Cohen propose the use of effect sizes?

asked Jan 17 in Psychology by GlennaPark6 (390 points)

0 votes

0 answers 27 views

When was the obedience to authority experiment conducted?

asked Jan 17 in Psychology by GroverSisco (450 points)

0 votes

0 answers 15 views

When did Festinger propose the concept of cognitive dissonance?

asked Jan 17 in Psychology by SheriCockeri (590 points)

0 votes

0 answers 20 views

When did Tukey introduce the p-value?

asked Jan 17 in Psychology by Shayne69Q78 (610 points)

0 votes

0 answers 19 views

When did Maslow propose the hierarchy of needs theory?

asked Jan 17 in Psychology by GarlandSouku (510 points)

Categories