The specifications provided are not directly related to the topic of the role of women in shaping society and breaking barriers in the 20th century (C20).

Mechanical properties and chemical composition are usually used to describe physical properties and characteristics of materials, such as metals or chemicals. They are not applicable to the topic of women’s roles in society.

To address the topic mentioned, here are some potential specifications:

1. Historical Context: The Role of Women in the 20th Century
– Explore the societal norms and gender expectations that prevailed in the early 20th century and the challenges women faced in breaking traditional barriers.
– Analyze the impact of major events like World War I, World War II, and the feminist movements on women’s roles in society.

2. Educational and Professional Advancement
– Investigate the educational opportunities available to women during this period and how they contributed to breaking gender stereotypes.
– Examine the barriers faced by women in entering and excelling in traditionally male-dominated professions.

3. Leadership and Political Participation
– Evaluate the involvement and influence of women in politics, including suffrage movements and female political leaders.
– Explore how women’s involvement in politics and leadership roles helped shape society and brought about policy changes.

4. Cultural and Artistic Contributions
– Examine the contributions of women in cultural and artistic fields such as literature, music, art, and film.
– Discuss notable female artists, writers, and performers who challenged societal norms and redefined gender roles.

5. Social Reforms and Activism
– Analyze the role of women in social reform movements such as the civil rights movement, labor rights activism, and the fight for reproductive rights.
– Discuss how women’s activism and advocacy contributed to progressive changes in society.

Overall, these specifications provide a more accurate framework for discussing the role of women in shaping society and breaking barriers in the 20th century.